Results 1 to 10 of about 69,985 (292)

Formation of sucrose crystallization centers and their growth in a vacuum apparatus

open access: yesBIO Web of Conferences, 2021
The article considers sucrose crystallization as a mass transfer process, which is a phase transition from a liquid phase to a solid phase, and includes two main stages: the formation of crystallization centers and the growth of crystals to the desired ...
Slavyanskiy Anatoliy   +2 more
doaj   +3 more sources

About the crystallization centers of metal melts

open access: yesЛитьë и металлургия
It is shown that the main modifying intermetallides of primary microcrystals of aluminum alloys do not satisfy the principle of structural and dimensional correspondence.
E. I. Marukovich   +2 more
doaj   +2 more sources

Molecular spin sensor for in-situ monitoring of crystallization behavior and phase transition in aromatic materials [PDF]

open access: yesNature Communications
Spin-active materials with sensitive electron spin centers have drawn significant attention in quantum sensing due to their unique quantum characteristics. Herein, we report a molecular spin sensor based on metallofullerene Y2@C79N for in-situ monitoring
Linshan Liu   +5 more
doaj   +2 more sources

Influence of modification of the cast metal structure by solid phase particles on the nucleation of crystallization centers and their stability [PDF]

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2022
The inoculation method has wide possibilities for improving the mechanical and operational properties of cast metal, which makes it possible to create artificial centers of crystallization due to the direct introduction of dispersed refractory particles
Е.Н. Еремин
doaj   +2 more sources

Nanomodification is an effective methodfor forming the structure of the weld metal. Part II. [PDF]

open access: yesНанотехнологии в строительстве, 2020
The short-term existence of the melt in the weld pool and its overheating, a large temperature gradient near the interface and two-dimensional crystallization centers, in the form of fused grains at the weld pool boundary, reduce the probability and rate
Sizintsev Sergey Valerievich   +3 more
doaj   +1 more source

The interplay of sedimentation and crystallization in hard-sphere suspensions [PDF]

open access: yes, 2013
We study crystal nucleation under the influence of sedimentation in a model of colloidal hard spheres via Brownian Dynamics simulations. We introduce two external fields acting on the colloidal fluid: a uniform gravitational field (body force), and a ...
Bonn, Daniel   +3 more
core   +8 more sources

Influence Intensive Plastic Deformation on Phase Formation Process in Amorphous Alloys [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
The influence of intensive plastic deformation on structure and properties of amorphous alloys were investigated experimentally. Using highly sensitive dilatometer techniques shown that intensive plastic deformation of amorphous alloys leads to increased
V.I. Lysov   +3 more
doaj   +1 more source

Crystallization behavior and morphological features of ethylene-vinyl alcohol 44 copolymer

open access: yeseXPRESS Polymer Letters, 2022
This work is a first attempt to study the crystallization behavior of ethylene-vinyl alcohol copolymer with 44 mol% of ethylene units (EVOH44) and to observe the supermolecular structures developed during its crystallization.
Clement Freymond   +6 more
doaj   +1 more source

Crystal nucleation in adroplet based microfluidic crystallizer [PDF]

open access: yes, 2012
The study presented in this paper deals with the determination of eflucimibe nucleation rate in a droplet based microfluidic crystallizer. The experimental device allows the storage of up to 2000 monodispersed droplets to get nucleation statistics and ...
Biscans, Béatrice, Teychene, Sébastien
core   +1 more source

Dispersion of the F+2 center in KCl crystal [PDF]

open access: yesSolid State Communications, 1985
Abstract The dispersion due to F+2 center in KCl crystal is determined at liquid helium temperature through an ellipsometric technique using their polarization properties in the spectral region of the ls g→2p u transition. The maximum index change expressed as a function of the peak-to-peak dichroic absorption constant αd(cm−1) is given by (n ...
Donatti, D. A., Aegerter, Michel A.
openaire   +1 more source

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